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Finding the Fourth Proportional to 18,304.11, 27,458.18 and 5,821.21

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Solution

The fourth proportional to 18,304.11, 27,458.18 and 5,821.21 is: 8,732.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,304.11 : 27,458.18 = 5,821.21 : x
  2. Step 2: Convert to fraction form
    18,304.11/27,458.18 = 5,821.21/x
  3. Step 3: Cross multiply
    18,304.11x = 27,458.18 × 5,821.21
  4. Step 4: Simplify right side
    18,304.11x = 159,839,900.64
  5. Step 5: Solve for x
    x = 159,839,900.64/18,304.11
  6. Step 6: Final answer
    x = 8,732.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.